Engine Flush $49.95

One of the services an oil change technician might suggest next time you're in is an engine flush, which is exactly what it sounds like -- it flushes the gunk out of your engine.

Chemicals are poured into the engine, which is then gently idled for a few minutes to make sure the cleaning agent reaches everyplace oil would normally go. Then the chemicals are drained, just like the oil would be for an oil change. As a matter of fact, an engine flush is often performed after the old oil is taken out and before the new, clean oil is poured in.